Well, since you can be anyone you want on the internet, it is often said that the women are just creepy dudes pretending to be girls for attention or other things.

And the children are usually FBI agents pretending to be children to ensnare pedophiles.

Though, naturally, it isn't actually true in most cases, the above is still a possibility in most cases, and you should therefore be careful when dealing with "women" or "children". Hence, we live by the motto that women are men and children are FBI agents.